At that season it is frequently mistaken for the chipping sparrow, but the 2 rarely overlap in winter. The American tree sparrow often occurs in flocks of up to 50 birds. In habitat and behavior ...

Here’s a look at these easygoing birds of North America and the qualities that make them so abundant. Check out 15 backyard ...

The cheery and sociable house sparrow is more closely associated with humans than any other widely established North American exotic. Introduced to New York City in 1851, the species today ...

More than half of the North American commercial poultry flocks in North America have been in the United States. As of ...

suggests most birds are found in the northern hemisphere: in Europe, northern Asia, northern Africa, parts of the Arabian Peninsula, and North America. In contrast, very few birds are found in ...